to use a rifle. he's been awarded for his marksmanship. >> reporter: that's right. the u.s. navy quickly assembling what records it has on this man. and telling us he was a navy reservist. just until a few days ago, he separated from the naval service. we don't know when the last time is he showed up. but he has shooting expertise. let's go through it. according to navy records, he has been awarded the rifle marksman ribbon and the pistol expert medal. these are awarded for achieving a certain level of shooting accuracy at various distances. let's be clear. the plan is not a navy commander, he's not a navy s.e.a.l. he held a number of jobs as a reservist in navy security operations. in fact, he went to iraq, we are told, and had a job providing military security on iraqi oil platforms, to have that job, it is most likely we are told he did receive some advanced weapons training. you will remember back in those days, those oil platforms, a lot of concern about small boat attacks, sniper attacks, that sort of thing. so he clearly has a certain level, a worrisome level of weapons expertise.